We thoroughly enjoyed the stay at this apartment. It's centrally located with a good variety of food choices nearby including Nepali, Chinese, Thai, Portuguese and burgers.
The apartment itself is very well appointed with everything you need - washer/dryer, coffee maker, gas stove, microwave, electric oven and an assortment of simple spices and oils to cook with.
There were only 2 areas that I think can be improved. One is the non-stick frying pans have much of the non-stick coating already scratched off. Eating that stuff can be carcinogenic, so I think it's important to regularly replace them with at least 2 good working pans at any time.
The other is the water heater - a bit small for a house that can sleep 6. When one or two people had showered, the person after that would not have enough hot water for a full shower.
The apartment is situated near the top of a steep hill, but then so much of Lisbon is that way. My advice to first-time travelers to Lisbon who are considering this property: When taking the metro, stop at the Independente station and walk mostly downhill, rather than the nearer Maxim-Monis station, which will require you to conquer several steep inclines just to get home.